<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>插值文本</title>
</head>
<body>

<div id="app">
    <span v-once>这个Message将不会改变: {{msg}}</span>
</div>

<script src="../js/vue.js"></script>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            msg: 'Hello'
        }
    })
</script>
</body>
</html>